<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">
<head lang="en">
    <meta charset="UTF-8" />
    <title>统一异常处理</title>
</head>
<body>
<h1>系统错误</h1>
<p th:text="${url}"></p>
<div th:text="${exception.message}"></div>
<input type="button" value="返回上一页" onclick="javascript:history.go(-1)"/>
</body>
</html>